Field Level Notification

 

Field level notifications are mostly used for displaying an error message for the field/control to indicate that data isn't valid.

If you want to give field level notification using javaScript then you can use following syntax:

Syntax : 

formContext.getControl(arg).setNotification(message, uniqueId);

message  - to display message.

uniqueId - to clear the message

Following is the example of use of field-level notification : 

 FormLevelNotification: function(executionContext) {
    var formContext = executionContext.getFormContext();
    var age = formContext.getAttribute("age").getValue();
    if(age != null && age.getValue() < 18) {
        //set otification to field
        formContext.getControl("age").setNotification("Age should be greater than 18", "200") //200 is uniqueId
        formContext.getAttribute("age").setValue(null);
    }
    else {
        //clear notification from field
        formContext.getControl("age").clearNotification("200");
    }
}